1N4744A-T50A

## **1N4728A - 1N4758A Zener Diodes** 

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Tolerance = 5%<br>a<br>DO-41 Glass case<br>COLOR BAND DENOTES CATHODE<br>**----- End of picture text -----**<br>


## **Absolute Maximum Ratings *** Ta = 25°C unless otherwise noted 

|**Device**<br>~~Boee~~|**VZ (V) @ IZ **(Note 1)<br>~~Boee~~|**VZ (V) @ IZ **(Note 1)<br>~~Boee~~|**VZ (V) @ IZ **(Note 1)<br>~~Boee~~|**Test Current**<br>**IZ (mA)**<br>~~eee~~|**Max. Zener Impedance**<br>~~eee~~|**Max. Zener Impedance**<br>~~eee~~|**Max. Zener Impedance**<br>~~eee~~|**Leakage**<br>**Current**<br>~~eee~~|**Leakage**<br>**Current**<br>~~eee~~|**Non-Repetitive**<br>**Peak Reverse**<br>**Current**<br>**IZSM(mA) **(Note 2)<br>~~eee~~|
|---|---|---|---|---|---|---|---|---|---|---|
||**Min.**<br>~~Boee~~|**Typ.**<br>~~Boee~~|**Max.**<br>~~Boee~~||**ZZ @ IZ**<br>**(****)**<br>~~eee~~|**ZZK @**<br>**IZK(****)**<br>~~eee~~|**IZK**<br>**(mA)**<br>~~eee~~|**IR**<br>**(****A)**<br>~~eee~~|**VR**<br>**(V)**<br>~~eee~~||
|1N4728A<br>1N4729A<br>1N4730A<br>1N4731A<br>1N4732A<br>~~Boee~~|3.135<br>3.42<br>3.705<br>4.085<br>4.465<br>~~Boee~~|3.3<br>3.6<br>3.9<br>4.3<br>4.7<br>~~Boee~~|3.465<br>3.78<br>4.095<br>4.515<br>4.935<br>~~Boee ~~|76<br>69<br>64<br>58<br>53<br> ~~eee~~|10<br>10<br>9<br>9<br>8<br>~~eee~~|400<br>400<br>400<br>400<br>500<br>~~eee~~|1<br>1<br>1<br>1<br>1<br>~~eee~~|100<br>100<br>50<br>10<br>10<br>~~eee~~|1<br>1<br>1<br>1<br>1<br>~~eee~~|1380<br>1260<br>1190<br>1070<br>970<br>~~eee~~|
|1N4733A<br>1N4734A<br>1N4735A<br>1N4736A<br>1N4737A|4.845<br>5.32<br>5.89<br>6.46<br>7.125|5.1<br>5.6<br>6.2<br>6.8<br>7.5|5.355<br>5.88<br>6.51<br>7.14<br>7.875|49<br>45<br>41<br>37<br>34|7<br>5<br>2<br>3.5<br>4|550<br>600<br>700<br>700<br>700|1<br>1<br>1<br>1<br>0.5|10<br>10<br>10<br>10<br>10|1<br>2<br>3<br>4<br>5|890<br>810<br>730<br>660<br>605|
|1N4738A<br>1N4739A<br>1N4740A<br>1N4741A<br>1N4742A|7.79<br>8.645<br>9.5<br>10.45<br>11.4|8.2<br>9.1<br>10<br>11<br>12|8.61<br>9.555<br>10.5<br>11.55<br>12.6|31<br>28<br>25<br>23<br>21|4.5<br>5<br>7<br>8<br>9|700<br>700<br>700<br>700<br>700|0.5<br>0.5<br>0.25<br>0.25<br>0.25|10<br>10<br>10<br>5<br>5|6<br>7<br>7.6<br>8.4<br>9.1|550<br>500<br>454<br>414<br>380|



© 2009 Semiconductor Components Industries, LLC. October-2017, Rev. 8 

Publication Order Number: 1N4736AT/D 

|**Device**|**VZ (V) @ IZ **(Note 1)|**VZ (V) @ IZ **(Note 1)|**VZ (V) @ IZ **(Note 1)|**Test Current**<br>**IZ (mA)**|**Max. Zener Impedance**|**Max. Zener Impedance**|**Max. Zener Impedance**|**Leakage**<br>**Current**|**Leakage**<br>**Current**|**Non-Repetitive**<br>**Peak Reverse**<br>**Current**<br>**IZSM(mA) **(Note 2)|
|---|---|---|---|---|---|---|---|---|---|---|
||**Min.**|**Typ.**|**Max.**||**ZZ @ IZ**<br>**(****)**|**ZZK @**<br>**IZK (****)**|**IZK**<br>**(mA)**|**IR**<br>**(****A)**|**VR**<br>**(V)**||
|1N4743A<br>1N4744A<br>1N4745A<br>1N4746A<br>1N4747A|12.35<br>14.25<br>15.2<br>17.1<br>19|13<br>15<br>16<br>18<br>20|13.65<br>15.75<br>16.8<br>18.9<br>21|19<br>17<br>15.5<br>14<br>12.5|10<br>14<br>16<br>20<br>22|700<br>700<br>700<br>750<br>750|0.25<br>0.25<br>0.25<br>0.25<br>0.25|5<br>5<br>5<br>5<br>5|9.9<br>11.4<br>12.2<br>13.7<br>15.2|344<br>304<br>285<br>250<br>225|
|1N4748A<br>1N4749A<br>1N4750A<br>1N4751A<br>1N4752A|20.9<br>22.8<br>25.65<br>28.5<br>31.35|22<br>24<br>27<br>30<br>33|23.1<br>25.2<br>28.35<br>31.5<br>34.65|11.5<br>10.5<br>9.5<br>8.5<br>7.5|23<br>25<br>35<br>40<br>45|750<br>750<br>750<br>1000<br>1000|0.25<br>0.25<br>0.25<br>0.25<br>0.25|5<br>5<br>5<br>5<br>5|16.7<br>18.2<br>20.6<br>22.8<br>25.1|205<br>190<br>170<br>150<br>135|
|1N4753A<br>1N4754A<br>1N4755A<br>1N4756A<br>1N4757A|34.2<br>37.05<br>40.85<br>44.65<br>48.45|36<br>39<br>43<br>47<br>51|37.8<br>40.95<br>45.15<br>49.35<br>53.55|7<br>6.5<br>6<br>5.5<br>5|50<br>60<br>70<br>80<br>95|1000<br>1000<br>1500<br>1500<br>1500|0.25<br>0.25<br>0.25<br>0.25<br>0.25|5<br>5<br>5<br>5<br>5|27.4<br>29.7<br>32.7<br>35.8<br>38.8|125<br>115<br>110<br>95<br>90|
|1N4758A|53.2|56|58.8|4.5|110|2000|0.25|5|42.6|80|



## **Notes:** 

1. Zener Voltage (VZ) 

The zener voltage is measured with the device junction in the thermal equilibrium at the lead temperature (TL) at 30C ± 1C and 3/8” lead length. 2. 2 Square wave Reverse Surge at 8.3 msec soak time. 

## **Top Mark Information** 

|**Device**|**Line 1**|**Line 2**|**Line 3**|**Line 4**|**Line 5**|
|---|---|---|---|---|---|
|1N4728A<br>1N4729A<br>1N4730A<br>1N4731A<br>1N4732A|LOGO<br>LOGO<br>LOGO<br>LOGO<br>LOGO|47<br>47<br>47<br>47<br>47|28<br>29<br>30<br>31<br>32|A<br>A<br>A<br>A<br>A|XY<br>XY<br>XY<br>XY<br>XY|
|1N4733A<br>1N4734A<br>1N4735A<br>1N4736A<br>1N4737A|LOGO<br>LOGO<br>LOGO<br>LOGO<br>LOGO|47<br>47<br>47<br>47<br>47|33<br>34<br>35<br>36<br>37|A<br>A<br>A<br>A<br>A|XY<br>XY<br>XY<br>XY<br>XY|
|1N4738A<br>1N4739A<br>1N4740A<br>1N4741A<br>1N4742A|LOGO<br>LOGO<br>LOGO<br>LOGO<br>LOGO|47<br>47<br>47<br>47<br>47|38<br>39<br>40<br>41<br>42|A<br>A<br>A<br>A<br>A|XY<br>XY<br>XY<br>XY<br>XY|
|1N4743A<br>1N4744A<br>1N4745A<br>1N4746A<br>1N4747A|LOGO<br>LOGO<br>LOGO<br>LOGO<br>LOGO|47<br>47<br>47<br>47<br>47|43<br>44<br>45<br>46<br>47|A<br>A<br>A<br>A<br>A|XY<br>XY<br>XY<br>XY<br>XY|
|1N4748A<br>1N4749A<br>1N4750A<br>1N4751A<br>1N4752A|LOGO<br>LOGO<br>LOGO<br>LOGO<br>LOGO|47<br>47<br>47<br>47<br>47|48<br>49<br>50<br>51<br>52|A<br>A<br>A<br>A<br>A|XY<br>XY<br>XY<br>XY<br>XY|
|1N4753A<br>1N4754A<br>1N4755A<br>1N4756A<br>1N4757A|LOGO<br>LOGO<br>LOGO<br>LOGO<br>LOGO|47<br>47<br>47<br>47<br>47|53<br>54<br>55<br>56<br>57|A<br>A<br>A<br>A<br>A|XY<br>XY<br>XY<br>XY<br>XY|
|1N4758A|LOGO|47|58|A|XY|



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## **Top Mark Information** (Continued) 

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[47] 2  line: Device Name - 3  to 4  characters of device name for 1Nxx series<br>or 4 [[th]]  to 6 [[th]]  characters for BZXyy series<br>36 3 [rd]  line: Device Name - 5 [th]  to 6 [th]  characters of device name for 1Nxx series<br>A or Voltage rating for BZXyy series<br>| 4 [[th]]  line: Device Name - 7 [[th]]  to 8 [[th]]  characters of device name for 1Nxx series<br>or Large Die identification only for BZXyy series<br>XY<br>**----- End of picture text -----**<br>


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